#include<stdio.h>
int main(void)
{
	int a, b;
	//Enter a and b:
	scanf("%d%d", &a, &b);
	printf("a=%d b=%d\n", a, b);
	/*********Begin*********/
	a = a + b;
	b = a - b;
	a = a - b;

	/*********End**********/
	printf("a=%d  b=%d\n", a, b);
	return 0;
}